. >> reporter: investors say the storm is, in part, because of some good news about the economy. last month, employers added 175,000 new jobs with unemployment expected to fall below 7% next year. existing home sales are also picking up, posting their best month in 3 1/2 years. but recovery from recession mean he is the federal reserve could pull back on its stimulus pro, which has pumped billions into the system to help drive growth. >> our economy is getting better and now it's time for us to see how we can do it on our own. >> reporter: potential shift by the fed has shaken some investors who feared the economy is not as strong as it seems. some also worry record low interest rates could disappear. already, mortgage rates have climbed above 4% for the first time in a year. market watchers say the volatile week is a sign of coming deterrence with the new reality. >> once we get through that period, i think we are going to realize that we are going to be okay and things will get back to normal. >> reporter: now, financial advisers say the best advice for average investors not to